CA3013153A1 - Differential current sensing bussing method - Google Patents

Differential current sensing bussing method Download PDF

Info

Publication number
CA3013153A1
CA3013153A1 CA3013153A CA3013153A CA3013153A1 CA 3013153 A1 CA3013153 A1 CA 3013153A1 CA 3013153 A CA3013153 A CA 3013153A CA 3013153 A CA3013153 A CA 3013153A CA 3013153 A1 CA3013153 A1 CA 3013153A1
Authority
CA
Canada
Prior art keywords
conductor
current
rigid conductor
current transformer
rigid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CA3013153A
Other languages
English (en)
French (fr)
Inventor
Dennis W. Fleege
Chad Mittelstadt
Randall J. Gass
Douglas P. VANWAART
Jason Potratz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric USA Inc
Original Assignee
Schneider Electric USA Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric USA Inc filed Critical Schneider Electric USA Inc
Publication of CA3013153A1 publication Critical patent/CA3013153A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
    • G01R19/16514—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using electronic tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/06—Sense amplifiers; Associated circuits, e.g. timing or triggering circuits
    • G11C7/062—Differential amplifiers of non-latching type, e.g. comparators, long-tailed pairs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/0015—Using arc detectors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45237—Complementary long tailed pairs having parallel inputs and being supplied in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H01H2083/146—Provisions for avoiding disadvantages of having asymetrical primaries, e.g. induction of a magnetic field even by zero difference current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H01H2083/148—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer with primary windings formed of rigid copper conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H2083/201—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other abnormal electrical condition being an arc fault
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
    • H02H3/105—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions responsive to excess current and fault current to earth
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Emergency Protection Circuit Devices (AREA)
CA3013153A 2017-08-09 2018-08-01 Differential current sensing bussing method Pending CA3013153A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/672,762 US10852326B2 (en) 2017-08-09 2017-08-09 Differential current sensing bussing method
US15/672,762 2017-08-09

Publications (1)

Publication Number Publication Date
CA3013153A1 true CA3013153A1 (en) 2019-02-09

Family

ID=63113403

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3013153A Pending CA3013153A1 (en) 2017-08-09 2018-08-01 Differential current sensing bussing method

Country Status (7)

Country Link
US (2) US10852326B2 (es)
EP (1) EP3442000B1 (es)
CN (1) CN109390907B (es)
AU (2) AU2018211266B2 (es)
CA (1) CA3013153A1 (es)
MX (2) MX2018009479A (es)
RU (1) RU2769969C2 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019107399A1 (de) * 2019-03-22 2020-09-24 Vega Grieshaber Kg Feldgerät mit Überwachungsvorrichtung und Verfahren zum Betreiben eines Feldgerätes
EP3764107B1 (en) * 2019-07-12 2022-03-09 LEM International SA Current transducer for measuring residual currents
US11501929B1 (en) 2021-06-22 2022-11-15 Schneider Electric USA, Inc. Remote controlled miniature circuit breaker with helical gear and DC motor
US11842873B2 (en) 2021-06-22 2023-12-12 Schneider Electric USA, Inc. Two piece trip lever to open and close contacts remotely

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617809A (en) 1970-05-15 1971-11-02 Texas Instruments Inc Electronic safety system
US3683302A (en) 1970-12-15 1972-08-08 Fred C Butler Sensor for ground fault interrupter apparatus
US3725741A (en) * 1971-06-30 1973-04-03 Westinghouse Electric Corp Differential transformer mounting arrangement particulary for ground fault interrupter apparatus
US3736468A (en) 1971-06-30 1973-05-29 Westinghouse Electric Corp Ground fault interrupter apparatus
DE3140866A1 (de) 1981-10-14 1983-04-21 Siemens AG, 1000 Berlin und 8000 München Anordnung zur vermeidung von fehlimpulsen eines summenstromwandlers
US5341281A (en) 1993-05-14 1994-08-23 Allen-Bradley Company, Inc. Harmonic compensator using low leakage reactance transformer
US5446431A (en) * 1994-04-28 1995-08-29 Square D Company Ground fault module conductors and base therefor
GB9414869D0 (en) 1994-07-23 1994-09-14 Delta Circuits Protection Module for use with a circuit breaker
US6232857B1 (en) 1999-09-16 2001-05-15 General Electric Company Arc fault circuit breaker
US6717493B2 (en) * 2002-03-18 2004-04-06 Andrew Corporation RF cable having clad conductors and method of making same
US6707651B2 (en) 2002-06-03 2004-03-16 Eaton Corporation ARC fault or ground fault or ARC fault/ground fault trip signal generator and trip unit employing the same
US7639461B2 (en) 2004-04-30 2009-12-29 Leviton Manufacturing Company, Inc. Overcurrent protection for circuit interrupting devices
US20070208520A1 (en) * 2006-03-01 2007-09-06 Siemens Energy & Automation, Inc. Systems, devices, and methods for arc fault management
US8111504B2 (en) * 2008-12-16 2012-02-07 Schneider Electric USA, Inc. Current sensor assembly
US7994882B2 (en) 2009-04-18 2011-08-09 General Electric Company Space allocation within a circuit breaker
RU2396661C1 (ru) * 2009-07-08 2010-08-10 Государственное образовательное учреждение высшего профессионального образования Дальневосточный государственный технический университет (ДВПИ им. В.В. Куйбышева) Измерительное устройство дифференциальной токовой защиты шин
ITBG20090020U1 (it) * 2009-07-28 2011-01-29 Abb Spa Dispositivo di commutazione elettrica per circuiti di bassa tensione.
EP2940702A1 (de) 2014-04-16 2015-11-04 Bender GmbH & Co. KG Differenzstrom-messmodul

Also Published As

Publication number Publication date
AU2023202802A1 (en) 2023-05-25
RU2769969C2 (ru) 2022-04-12
EP3442000A1 (en) 2019-02-13
MX2018009479A (es) 2019-02-12
US11385300B2 (en) 2022-07-12
US10852326B2 (en) 2020-12-01
AU2018211266A1 (en) 2019-02-28
AU2018211266B2 (en) 2023-05-25
CN109390907B (zh) 2020-06-12
EP3442000B1 (en) 2020-06-17
US20190049489A1 (en) 2019-02-14
RU2018128282A (ru) 2020-02-05
RU2018128282A3 (es) 2021-11-18
MX2021010660A (es) 2022-01-19
US20210072293A1 (en) 2021-03-11
CN109390907A (zh) 2019-02-26

Similar Documents

Publication Publication Date Title
US11385300B2 (en) Differential current sensing bussing method
CA2350514C (en) Arc fault circuit breaker
US4623865A (en) Current transformer arrangement for ground fault circuit interrupters
US6348800B1 (en) Multi-phase ground fault current sensor system
US6441605B1 (en) Current sensor for an electrical device
US10690700B2 (en) Multiple core transformer assembly
EP3441999B1 (en) Integrated arc fault and ground fault current sensing package
US7986202B2 (en) Circuit breaker current transformer conductor location device for improved sensing accuracy and assembly
US6728085B2 (en) Circuit breaker with shunt
NZ744846A (en) Differential Current Sensing Bussing Method
US20160012999A1 (en) Low instantaneous level circuit breakers, circuit breaker tripping mechanisms, and tripping methods
RU2772982C2 (ru) Интегрированный блок определения тока дугового замыкания и замыкания на землю
NZ744698A (en) Integrated Arc Fault And Ground Fault Current Sensing Package
EP2924447A1 (en) Combined current sensor
KR101989604B1 (ko) 피시비형 순시 검출 기능을 가지는 차단기
US6111489A (en) Circuit breaker configuration
EP4386391A1 (en) Current detector and power harvester with interposed magnetic shields for low-voltage switches
JP2011210456A (ja) 電子式回路遮断器
JPH08185787A (ja) 漏電遮断器
JP2019033070A (ja) 差動電気的保護装置

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20230726